The mistakes that we have made in the past are learning tools, so they help us move though life
I'm not sure how many strictly Colorless lands you want in a deck like this, especially if your second color is white for wrath effects or a token theme with Caretaker's Talent
Cards that reset your opponent's entire board state while leaving your own intact are few and far between, so the power of this card should not be underestimated, even though it doesn't technically destroy anything
Often Geist will find himself suicided into something that will obviously kill or trade with him so as to snipe down a planeswalker with the evasive angel token
The Great Henge isnt as easy to cast as Guardian Project, but if you do the heavy lifting necessary to cast this at a reasonable cost, you get the bonus of extra mana and lifegain each turn, and your creature cards that enter the battlefield get a +1/+1 counter on them, in addition to the card draw